单词 | brachisto- |
释义 | brachisto-comb. form combining form of Greek βράχιστος, superlative of βραχύς short. Cf. brachycephalic adj. brachistocephali n. Brit. , U.S. men or races with the shortest skull. [Compare brachycephales n. at brachycephalic adj. Derivatives.] ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > skull measurement > [noun] > types of skull > person having macrocephalus1626 long head1650 microcephalus1848 brachycephales1863 dolichocephali1863 brachistocephali1866 mecistocephali1866 Mesocephali1866 roundhead1867 microcephale1873 microcephalic1873 dolichocephal1876 mesorrhinian1878 mesocephal1883 short head1883 mesorrhine1885 platyrrhine1886 brachycephal1901 1866 T. H. Huxley in S. Laing Pre-hist. Remains Caithness 85 Sub-divide the Brachycephali into Eurycephali..and Brachistocephali. brachistocephaly n. Brit. , U.S. the quality of having the shortest type of skull. [Compare brachycephaly n. at brachycephalic adj. Derivatives.] ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > skull measurement > [noun] > types of skull > condition of having long-headedness1818 microcephalia1849 microcephaly1863 leptocephaly1864 platycephaly1864 dolichocephalism1865 mesaticephalism1865 brachistocephaly1866 dolichocephaly1866 mecistocephaly1866 acrocephaly1870 brachycephaly1871 megalocephaly1878 pyrgocephaly1878 stenocephaly1878 brachycephalism1880 platyrrhiny1880 hypsistenocephaly1881 mesocephaly1883 short-headedness1883 orthocephaly1884 oxycephaly1885 mesocephalism1888 macrocephalia1889 macrocephaly1889 broad-headedness1890 mesaticephaly1891 chamaeconchy1902 chamaeprosopy1902 hypsiconchy1902 mesorrhiny1902 mesoconchy1904 tower skull1905 1866 T. H. Huxley in S. Laing Pre-hist. Remains Caithness 111 Of these, but one reaches the limits of brachistocephaly. brachistochrone n. Brit. , U.S. the curve in which a body descending to a given point under the action of gravity will perform its journey in the shortest possible time; the curve of quickest descent. [Compare French brachistochrone (1698 or earlier).] ΘΚΠ the world > movement > motion in a certain direction > movement in circle or curve > [noun] > movement in curve > curve of quickest descent brachistochronea1774 a1774 O. Goldsmith Surv. Exper. Philos. (1776) I. 153 The curve of a cycloid, which was afterwards called by the hard name of a Brachystochrone, or the line of quickest descent. 1877 E. Thomas tr. F. A. Lange Hist. Materialism I. 122 The falling body reaches the goal more quickly upon the brachystochrone than upon an inclined plane. This entry has not yet been fully updated (first published 1888; most recently modified version published online March 2022). < |
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